I had knowledge in systematic and comprehensive recording of financial transactions pertaining to a business, and it also a process of summarizing, analyzing and reporting these transactions to oversight agencies and tax collection entities.And the field that deals with the study of investments. It including dynamics of assets and liabilities over time under conditions of different degrees of uncertainty and risk.Also, as the science of money management.With the aims to price assets based on their risk level and their expected rate of return.And finally i had knowledge into three different sub-categories: public finance, corporate finance and personal finance.